vn1minh, at xda-devs have come with a simple and light weight application called MobilePad, which is a simple note-taking application.
MobilePad is a light, speedy multitab text editor that allows you to create quick notes or long journals for daily activities right on your Windows Mobile Phone.
1. Customize Auto-Save
2. Send current document as SMS
3. Send current document as Email
4. Save and Insert custom Signature
5. Call or SMS valid highlighted phone number right from your document
6. Supported Landscape mode
7. Now support TXT, XML, INI, and LOG extension
8. Small and speedy